Dental burr cabinet



y 3, 1932- 1.. M. CIBOCH 1,856,807

DENTAL BURR. CABINET Filed Sept 20, 1930 l 5 Sheets-Sheet l Inventor ByEMMA A Home y y 1932. M. CIBOCH 1,356,807

DENTAL BURR CABINET Filed Sept. 20, 1930 3 Sheets-Sheet 2 97 M a? 9 as6' 5 I 1 If f l I HD8710) 27 v .LM 6'27/0 0% A llorney May 3, 1932. L.M. CIBOCH DENTAL BURR CABINET Filed Sept. 20, 1930 5 Sheets-Sheet 3In'venlor A Ilomey Patented May 3, 1932 PATET FF1E LEWIS M. CIBOCH, OFBROOKFIELD, ILLINOIS DENTAL BURR CABINET Application filed September 20,1930. Serial No. 483,350.

The present invention relates to a dental burr cabinet of the generalcharacter illustrated and described in United States Patent No.1,731,705 issued to me on October 15, 1929, and upon which thisinvention constitutes an improvement.

An important object of this invention is to provide, in a manner ashereinafter set forth, a dental burr cabinet of the aforementionedcharacter embodying a housing in which is mounted for rotation in ahorizontal plane a drum having formed therein a series ofcircumferentially spaced radiating pockets for the reception ofdifferent sizes and types of dental burrs, the invention furtherincluding novel means for selectively removing the burrs from theirpockets for use.

Other objects of this invention are to provide a dental burr cabinet ofthe character described which will be simple in construction, strong,durable, eflicient in use and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention may become apparent'from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein Figure 1 is a view in top planof a dental burr cabinet constructed in accordance with the presentinvention.

Figure 2 is a view in front elevation thereof. 7

Figure 3 is a vertical longitudinal sectional view through the device. a

Figure 4 is a horizontal sectional view through the device showing thepocketed drum in top plan.

Figure 5 is a fragmentary view in elevation showing the outer peripheryof the drum.

Figure 6 is a detail view in section taken substantially on the line 6-6of Figure 3.

Figure 7 is a detail sectional view taken substantially on the line 77of Figure 3.

Figure 8 is a fragmentary vertical sectional view taken substantially onthe line 8-8 of Figure 1.

Referring to the drawings in detail, it will be seen that the referencenumeral 1 designates a horizontally disposed base which includes theintegral depending peripheral flange 2. A housing 3 is mounted on thebase and is provided with an out turned apertured flange 1 which restson the base 1 and is anchored thereto by the screws 5. As clearly seenin Figure 3 of thedrawings, the base 1 constitutes the closure for thebottom of the housing 3. The top wall of the housing 3 is provided witha centrally apertured raised central portion 6.

c A centrally disposed bearing 8 is disposed in vertical position on thebase 1 and extends above and below the horizontal portion of saidbase 1. The bearing 8, is of circular horizontal cross section and hasformed therein a transverse slot or passage 9 having its upper wallabove the horizontal plane of the horizontal portion of the base 1 andits lower wall spaced below the horizontal plane of the horizontalportion of the base 1. Also formed inthe horizontal portion of the base1 and spaced concentrically from the bearing 8 is an annular channel 10the purpose of which will be presently set forth. An upstanding annularsleeve 11 constituting a bearing is rigidly mounted on the base 1 inspaced, concentric relation to the bearing 8 through the medium of thescrews 12 which pass through an apertured inturned flange on the lowerend of the sleeve 11 and are anchored in the base 1.

' A drum supporting disk 13 is mounted for rotation in a horizontalplane on the upper end. of the bearing 8 and has formed integrally onits lower side the depending ring 1% for the reception of the upper endportion of the bearing 8. The depending ring 14 constitutes means forpreventing any lateral movement of the drum supporting disk 13 relativeto the bearing 8 as will be readily apparent. The drum supporting disk13 fits rotatably in the centrally disposed raised portion 6 of thehousing 3. The drum supporting disk 13 also has formed integrally on itsupper side an upstanding shank which projects rotatably through thecentral opening in the raised portion 6 and has fixed thereon theoperated knob 15.

An annular horizontally disposed drum 16 is disposed in the housing 3and rotatably encircles the bearing sleeve 11. The drum 16 is rigidlyconnected to the marginal portion of the disk 13 on the lower side ofsaid disk by the screws 17 extending through apertures provided thereforin the disk 13 and anchored in the inner marginal port-ion of the drum16. It will thus be seen that when the disk 13 is manually rotatedthrough the medium or the knob 15, the drum 16 will be rotated in thehousing 3.

The drum 16 has formed therein a series of circumferentially spaced,radially disposed, alternately long and short pockets 18 which extendinwardly from the outer periphery of the drum and terminate in spacedrelation to the inner periphery of said drum. The pockets 18 are openedat their top and are adapted to be successively brought into registrywith the radially extending elongatedinlet opening 19 formed in theupper wall of the housing 3, the opposite side walls of the inletopening converging downwardly as best seen in Figure 8 of the drawings.The inlet opening 19 extends through an upstanding rib 20 formedintegrally on top of the housing 3 and extending from the central raisedportion 6 to the outer periphery of the housing. A closure 21 ispivotally mounted as at 22 for swinging movement in a horizontal planeand for disposition over the inlet slot 19. A knob 23 is mounted on theclosure 21 for operating said closure.

At their lower ends the pockets 18 are closed by a fiat metallic ring 24which is secured in any suitable manner to the lower side of the drum 16for rotation therewith, said plate 24: also rotatably encircling thebearing sleeve 11 at the lower end portion of said sleeve 11. On itslower side and adjacent its inner periphery the plate 24 has formedthereon an annular series of teeth 25 against rotation.

The bearing sleeve 11 has formed in its lower end and at one side anotch 28 which is in radial alignment with an outlet opening 29 in thehousing 3. Passages 30 extend from the inner periphery of the drum 16 toii the inner ends of each of the pockets 18, said passages 30 beingadapted to be brought suc cessively into communication with the notch 28in the bearing sleeve 11 upon rotation of the drum. It will be notedthat the passages 30 and the outlet opening 29 communicate with thelower ends of the pockets 18 when the drum 16 is rotated.

As best seen in Figure 5 of the drawings, the outer periphery of thedrum is provided with a series of pocket indicating numerals I 31disposed adjacent the pockets which said numerals designate, and, (seeFigure 2) the housing 3 is provided with a window 32 above and slightlyto one side of the outlet opening 29 through which the numerals 31 maybe observed.

A rod 33 extends slidably into the base 1 at a point below the outletopening 29 and is operable through the slot 9 in the bearing 8. Abearing 34 is provided in the flange portion 2 of the base 1 throughwhich the rod 33 slidably passes and a depending bearing 35 is providedbeneath the horizontal portion of the base 1 for slidably supporting theinner end portion of the rod 33. A coil spring36 encircles the rod 33and has its inner end fastened to said rod and its outer end in abuttingengagement with the bearing 34 in a manner to yieldingly urge said rodinwardly toward inoperative position. An operating knob 37 is fixed onthe outer end of the rod An upstanding arm 38 is fixed on the inner endportion of the slidable rod 33 and is adapted for movementthrough theslot 9 in a horizontal plane. The arm 38 is adapted to seatin a recess39 formed in the horizontal portion of the base 1 and communicating withthe slot 9 in the bearing 8. An ejector pin 10 is fixed on the upper endportion of the arm 38 and is disposed in spaced parallelism with theslidable rod 33. The ejector pin 40 projects from the arm 38 through theslot 9 and has its free end portion disposed in the notch 28 when saidejector pin is in inoperative position. As will be apparent, when therod 33 is pulled outwardly against the tension of the coil spring 36,the arm 38 will move into the slot 9 from the notch 39 and the pin 40will be projected through the passage 30 which is in communication withthe notch 28 and into the adjacent pockets 18.

The dental burrs of various types and sizes are placed in the properpockets 18, if clesired, a suitable chart may be provided whereby it maybe expeditiously determined through the medium of the designatingnumerals 31 in which pockets the desired types or sizes of burrs aredisposed. When this has been determined the drum 16 is rotated throughthe medium or" the arm 15 and the disk 13 until the correct numeralappears in the window 32 and in this position the pockets 18 whichcontain the desired burr will have been brought into communication withthe outlet opening 29 and the passage 30 of said pocket'will be incommunication with the notch 28. Thus, the pin 40 will be projected intothe adjacent pocket 18 through the passage 30 upon manual operation ofthe rod 33 and the lowermost burr in said pocket will be ejected throughthe outlet opening 29. As before explained, the spring pressed detent 26releasably secures the drum 16 against rotation. The teeth 25 are sospaced that the detent 26 will bring one of the poohets 18 into registrywith the outlet opening 29 at all times when rotation of the drum 16 isstopped. As will be readily apparent the spring 36 automatically returnsthe ejector pin 40 to retracted or inoperative position.

\Vhen it is desired to replace the burrs in the pockets 18 the cover 21is swung in a horizontal position on the pivot pin 22 in a manner touncover the inlet slot or opening 19. Thedrum 16 is rotated in a mannerto bring the desired pocket beneath the inlet slot or opening 19 and theburr is deposited in said pocket in an obvious manner. The correctpocket in which the burr is to be replaced is determined by consultingthe aforementioned chart and through the medium of the indicatingnumerals 31. After the device has been used over a period of time thenecessity for consulting the chart usually decreases.

It is believed that the many advantages of a dental burr cabinetconstructed in accordance with this invention will be readilyunderstood, and although the preferred embodiment of the invention is asillustrated and described, it is to be understood that changes in thedetails of construction may be had which will fall within the scope ofthe invention as claimed.

hat is claimed is 1. A dispensing cabinet of the character describedcomprising a supporting base, a housing mounted on the base, a centrallydisposed bearing mounted vertically on the base and having a transverseslot therethrough extending above and below the base, an upstandingbearing sleeve rigidly mounted on the base in spaced, concentricrelation to the first named bearing, a horizontally disposed drumrotatably encircling the bearing sleeve and having a series ofcircumferentially spaced, radially disposed, alternately long and shortpockets extending thereinto from its outer periphery and terminating inspaced relation to its inner periphery, said pockets being opened attheir top, bottom and outer ends, said pockets being further adapted forthe reception of articles to be dispensed, the housing being providedwith an outlet opening, said pockets being further adaptedtosuccessively communicate with the outlet opening when the drum isrotated, the drum being further provided with a plurality of radialpassages communicating, at one end, with the inner periphery of the drumand at their outer ends with the inner ends of the} pockets, the bearingsleeve being provided with a notch in transverse alignment with the slotin the first named bearing and the outlet opening in the housing, saidnotch being further adapted to communicate with the passages in the drumwhen said drum is rotated, a flat annular plate rigidly mounted on thelower side of the drum and rotatably encircling the bearing sleeve, saidplate extending over the lower ends of the pockets and constituting abottom wall for said pockets, an annular series of teeth on the lowerside of the plate, a spring pressed detent mounted for verticalreciprocation in the supporting base and engageable with the teeth in amanner to releasably retain the drum against rotation, a disk rotatablymounted on the upper end of the first named bearing in the housin andrigidly connected to the drum, an operating knob fixed on the disk formanually rotating said disk and the drum, and a slidable ejector mountedon the supporting base for movement into the pockets in a manner toeject the articles from said pockets through the outlet opening in thehousing. 1

2. A dispensing cabinet of the character described comprising asupporting base, a housing mounted on the base, a centrally disposedbearing mounted vertically on the base and having a transverse slottherethrough extending above and below the base, an upstanding bearingsleeve rigidly mounted on the base in spaced, concentric relation to thefirst named bearing, a horizontally disposed drum rotatably encirclingthe bearing sleeve and having a series of circumferentially spaced,radially disposed, alternately long and short pockets extendingthereinto from its outer periphery and terminating in spaced relation toits inner periphery, said pockets being opened at their top, bottom andouter ends, said pockets being further adapted for the reception ofarticles to be dispensed, the housing being provided with an outlet opening, said pockets being further adapted to successively communicate withthe outlet opening when the drum is rotated, the drum being furtherprovided with a plurality of radial passages communicating, at one end,with the inner periphery of the drum and at their outer ends with theinner ends of the pockets, the bearing sleeve being provided with anotch in transverse alignment with the slot in the first named bearingand the outlet opening in the housing, said notch being further adaptedto communicate with the passages in the drum when said drum is rotated,a fiat annular plate rigidly mounted on the lower side of the drum androtatably encircling the bearing sleeve, said plate extending over thelower ends of the pockets and constituting a bottom wall for saidpockets, an annular series of teeth on the lower side of the plate, aspring pressed detent mounted for vertical reciprocation in thesupporting base and engageable with the teeth in a manner to releasablyretain the drum against rotation,a disk rotatably mounted on the upperend of the first named bearing in the housing and rigidly connected tothe drum, an operating knob fixed on the disk for manually rotating saiddisk and the drum, and a slidable ejector mounted on the supporting basefor lllOVQl'll'Ellt into the pockets in a manner to eject the articlesfrom said pockets through the outlet opening in the housing, saidejector comprising a horizontally disposed bar slidably mounted in thesupporting base and operable through the lower portion of the slot inthe first named bearing, a knob on one end portion of the slidable rodtor manually moving said rod in one direction, a coil spring operativelyconnected with the rod for moving the said rod in the other direc tion,an upstanding arm fixed on the other end portion of the rod and operablethrough the slot in the first named bearing, an ejector pin fixed on theupper end portion of the arm and projecting therefrom in spacedparallelism with the slidable rod for movement with said slidable rod,said ejector pin extending through the slot in the first named bearingfor movement through the notch in the bearing sleeve and the passage inthe drum which is in communication with said notch into the adjacentpocket in the drum for engagement with the article in said pocket.

3. A dispensing cabinet of the character described comprising asupporting base, a housing mounted on the base, a centrally disposedbearing mounted vertically on the base and having a transverse slottherethrough extending above and below the base, an upstanding bearingsleeve rigidly mounted on the base in spaced, concentric relation to thefirst named bearing, a horizontally disposed drum rotatably encirclingthe bearing sleeve and having a series of circumferentially spaced,radially disposed, alternately long and short pockets extendingthereinto from its outer periphery and terminating in spaced relation toits inner periphery, said pockets being opened at their top, bottom andouter ends, said pockets being further adapted for the reception ofarticles to be dispensed, the housing being further provided with anoutlet opening, said pockets being further adapted to successivelycommunicate with the outlet opening when the drum is rotated, the drumbeing further provided with a plurality of radial passagescommunicating, at one end, with the inner periphery of the drum and attheir outer ends with the inner ends of the pockets, the bearing sleevebeing provided with a notch in transverse alignment with the slot in thefirst named bearing and the outlet opening in the housing, said notchbeing further adapted to communicate with the passages in the drum whensaid drum is rotated, a flat annular plate rigidly mounted on the lowerside of the drum and rotatably encircling the bearing sleeve, said plateextending over the lower ends of the pockets and constituting abottomwallior said pockets, an annular series of teeth on the lower side ofthe plate, a spring pressed cletent mounted for vertical reciprocationin the supporting base and engageable with the teeth in a manner toreleasably retain the drum against rotation, a disk rotatably mounted onthe upper end of the first named bearing in the housing and rigidlyconnected to the drum, an operating knob fixed on the disk for manuallyrotating said disk and the drum, and a slidable ejector mounted on thesupporting base for movement into the pockets in a manner to eject thearticles from said pockets through the outlet opening in the housing,said ejector comprising a horizontally disposed bar slidably mounted inthe supporting base and operable through the lower portion of the slotin the first named bearing, a knob on one end portion of the slidablerod for manually moving said rod in one direction, a coil springoperatively connected with the rod for moving the said rod in the otherdirection, an upstanding arm fixed on the other end portion of the rodand operable through the slot in the first named bearing, an ejector pinfixed on the upper end portion of the arm and projecting therefrom inspaced parallelism with the slidable rod for movement with said slidablerod, said ejector pin extending through the slot in the first namedbearing for movement through the notch in the bearing sleeve and thepassage in the drum which is in communication with said notch into theadjacent pocket in the drum for engagement with the article in saidpocket, said housing being further provided with a radially disposed,elongated inlet opening in its upper side, and a hinged closurepivotally mounted for swinging movement in a horizontal plane on theupper side of the housing and adapted for disposition over the inletopening, the pockets in the housing being adapted for registry with theinlet opening simultaneously with the registry of said pockets with theoutlet opening of the housing.

In testimony whereof I affix my signature.

LEWVIS M. CIBOCH.

